Captured from the spacecraft's Long Range Reconnaissance Imager (LORRI) in April, the images shatter New Horizons' own record for the closest-ever views of this KBO in November 2015 when New Horizons detected "JR1" from 280 million km away.

Scientists reported today they finally have "good evidence" for Planet X, a true ninth planet on the fringes of our solar system. The gas giant is thought to be almost as big as Neptune and orbiting billions of miles beyond Neptune's path, distant enough to take 10,000 to 20,000 years to circle the sun.

Known severe upsets of the terrestrial environment and interruptions in the progress of ancient civilisations, together with our growing knowledge of interplanetary matter in near-Earth space, indicate the arrival of a centaur around 30,000 years ago.

A new study of observations from NASA`s Wide-field Infrared Survey Explorer (WISE) has revealed that most centaurs - the small celestial bodies orbiting the sun between Jupiter and Neptune - are actually comets.